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Building Tips and technical articles. => Building techniques => Topic started by: Perry Rose on December 24, 2021, 07:16:04 AM

Title: You want airfoils? I'll give you airfoils.
Post by: Perry Rose on December 24, 2021, 07:16:04 AM

Wrentham, Ma contest Sept. 2010. Jim Sumner built this and flew it in expert P.A.

Title: Re: You want airfoils? I'll give you airfoils.
Post by: Gerald Arana on December 25, 2021, 08:42:14 AM

Quote from: Perry Rose on December 24, 2021, 07:16:04 AM

Wrentham, Ma contest Sept. 2010. Jim Sumner built this and flew it in expert P.A.

Don't tell me, let me guess; He had extra Venetian blinds and didn't know what to do with them!  LL~ LL~ LL~ LL~

Merry Christmas, Jerry

Title: Re: You want airfoils? I'll give you airfoils.
Post by: Ken Culbertson on December 25, 2021, 01:06:41 PM

Very interesting.  How is it controlled?  If it is using RPM differences between the two motors then the new rules make it illegal.
Anybody that can make something like this, and fly the pattern with it,  disserves to be grandfathered or given a waiver,  and stand for a round of applause.

Ken

Title: Re: You want airfoils? I'll give you airfoils.
Post by: Ken Culbertson on December 25, 2021, 11:49:35 PM

Quote from: Motorman on December 25, 2021, 10:38:58 PM

Does each wing have flaps? I'd like to see that linkage.


Motorman 8)

See it - yes  Make it - NO!

Ken

Title: Re: You want airfoils? I'll give you airfoils.
Post by: Perry Rose on December 26, 2021, 06:35:00 AM

Mr. Sumner always came to the contest with a different multi winged and most of the time multi engined plane. Not always the same size and brand of engine either. This one is the most outrageous that I have seen. I was able to count 22 airfoils between the wing and stab. There may have been more.

Title: Re: You want airfoils? I'll give you airfoils.
Post by: Serge_Krauss on December 27, 2021, 05:29:29 AM

I understand that he did quite well with a bipe or triplane, but I had never seen THIS! Can anyone tell us how he did in competition with it? Was this one just to test the limits? Credulity is challenged!

SK

Title: Re: You want airfoils? I'll give you airfoils.
Post by: Perry Rose on December 27, 2021, 06:09:47 AM

As I remember he did most of the maneuvers with it. That in itself was a huge accomplishment.